#include "socket.h"
int socket_init(const char *ipaddr, const char *port)
{
	int s_fd = -1;
	int ret = -1;
	struct sockaddr_in s_addr;
	memset(&s_addr,0,sizeof(struct sockaddr_in));
	//1. socket
	s_fd = socket(AF_INET, SOCK_STREAM, 0);
	if(s_fd == -1){
		perror("socket");
		return -1;
	}
	s_addr.sin_family = AF_INET;
	s_addr.sin_port = htons(atoi(port));
	inet_aton(ipaddr,&s_addr.sin_addr);
	//2. bind
	ret = bind(s_fd,(struct sockaddr *)&s_addr,sizeof(struct sockaddr_in));
	if (-1 == ret)
	{
		perror("bind");
		return -1;
	}
	//3. listen
	ret = listen(s_fd,1); //只监听1个连接，排队扔垃圾
	if (-1 == ret)
	{
		perror("listen");
		return -1;
	}
	return s_fd;
}
